A method for evaluating degradation of a photodetector (112), the photodetector (112) comprising at least one photosensitive element (116), the photodetector (112) being configured for generating at least one detector current depending on an illumination of the photosensitive element (116) by light, the photodetector (112) further comprising at least one evaluation unit (120) for evaluating the detector current, wherein method comprises: a) determining at least one detector current; b) evaluating the detector current with respect to at least one reference value to obtain at least one relative detector current value; and c) deriving at least one item of degradation information on the photosensitive element (116) using the relative detector current value, the item of degradation information describing the degradation of performance due to temperature hysteresis behavior, aging, excessive temperatures and/or excessive illumination.
The present invention relates to a method for obtaining at least one item of object condition information on an object (147), the method comprising: i. acquiring image data of the object (147) by using at least one image generation unit (134); ii. evaluating the image data for obtaining at least one item of information on a local characteristic of the object (147); and evaluating the at least one item of information on the local characteristic of the object (147) for obtaining one or more measurement positions on the object (147); iii. acquiring at least one item of spectral information on the object (147) at the one or more measurement positions by using a spectrometer device (138); and iv. evaluating the item of spectral information for obtaining the at least one item of object condition information on the at least one object (147), wherein evaluating the item of spectral information for obtaining the at least one item of object condition information on the at least one object (147) further comprises evaluating the image data for obtaining the at least one item of object (147) condition information.
The invention is in the area of generation of datasets for biometric recognition. It relates to a computer-implemented method for generating datasets for training a biometric recognition system comprising a. receiving context information associated with hardware components of the biometric capture device, b. generating a dataset for training a biometric recognition system by providing the context information to a generative model which is configured to receive context information as input and output a dataset for training a biometric recognition system based on the context information, and c. outputting the dataset.
skimminginitialskimming,jactual,kactual,k of at least one further pixel k (132) of the plurality of pixels (122) with k ≠ j; c) comparing the initial signal value of the further pixel k (132) and the actual signal value of the further pixel k (132), by using at least one processor (134), wherein the further pixel k (132) is detected as out-of-line pixel (116) in case the initial signal value and the actual signal value differ by more than at least one predefined tolerance.
The present invention relates to an optical element (110), wherein the optical element (110) comprises: (1) at least one first Vertical-Cavity Surface-Emitting Laser (112), wherein the first Vertical-Cavity Surface-Emitting Laser (112) comprises an active area situated on a bottom surface of the first Vertical-Cavity Surface-Emitting Laser (112); (2) at least one second Vertical-Cavity Surface-Emitting Laser (118), wherein the second Vertical-Cavity Surface-Emitting Laser (118) comprises an active area situated on a top surface of the second Vertical-Cavity Surface-Emitting Laser (118), wherein the top surface is opposite of a bottom surface of the second Vertical-Cavity Surface-Emitting Laser (118); (3) at least one supporting member (126); wherein the first Vertical-Cavity Surface-Emitting Laser (112) is arranged with the bottom surface on the supporting member (126); and wherein the second Vertical-Cavity Surface-Emitting Laser (118) is arranged with the bottom surface on the supporting member (126).
G01B 11/25 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures by projecting a pattern, e.g. moiré fringes, on the object
The invention is in the area of biometric recognition. It relates to a biometric recognition system for recognizing a user from its hand comprising: a. projector for projecting light onto the hand of the user, b. a camera for recording an image of the hand, and c. a processor configured to i. extract features of the hand of the user for comparing them to reference features, ii. determine from the image if the hand is made of skin, and iii. generating a recognition signal based on the feature comparison and the skin determination.
A method for measuring blood perfusion of an object, the method comprising: receiving an image generated while the object is illuminated by coherent infrared light, generating a plurality of partial images based on the image, providing the plurality of partial images to a data-driven model based on a location of the plurality of partial images within the image for determining a material property measure, wherein the data-driven model is trained based on historical partial images provided to the data-driven model based on a location of the historical partial images and corresponding material property measures, providing the material property measure.
A method for authenticating an authorized user, the method comprising: receiving a request to access a resource, in response to receiving the request to access the resource triggering to illuminate the object by light, and triggering to generate an image of the object while the object is being illuminated by the light, receiving a template image of the authorized user, providing the image and the template image to a data-driven model for determining if the object associated with the image corresponds to the authorized user, wherein the data-driven model is trained with a plurality of training images obtained by generating a plurality of synthetic representations of a human generated from a representation of the human and augmenting the plurality of synthetic representations of a human to generate a plurality of training images, allowing the authorized user to access a resource in response determining that the object corresponds to the authorized user.
G06F 18/214 - Generating training patternsBootstrap methods, e.g. bagging or boosting
G06F 18/2413 - Classification techniques relating to the classification model, e.g. parametric or non-parametric approaches based on distances to training or reference patterns
G06F 21/32 - User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
G06V 40/16 - Human faces, e.g. facial parts, sketches or expressions
9.
OPTICAL ELEMENTS ON FLOOD VCSELS FOR 2IN1 PROJECTORS
An optoelectronic apparatus (112) is proposed which is configured for emitting at least one infrared light pattern comprising a plurality of infrared light beams and for emitting infrared flood light, comprising: - a light emitter structure (114) comprising a plurality of light emitters (116), wherein a first array (118) of light emitters (116) of the plurality of light emitters (116) forms a pattern illumination source (120) configured for emitting the infrared light pattern, wherein a second array (122) of light emitters (116) of the plurality of light emitters (116), different from the light emitters (116) of the first array (118), forms a flood illumination source (124) configured for emitting the infrared flood light; - a base (125) providing a single plane for mounting the light emitters (116); - at least one system of optical elements (126) comprising a plurality of optical elements, wherein the system of optical elements (126) is configured for focusing the emitted infrared light pattern onto a focal plane, wherein the system of optical elements (126) covers the light emitter structure (114); - at least one flood light optical element (130) configured for defocusing light emitted by the light emitters (116) of the flood illumination source (124) thereby forming overlapping light spots, wherein the flood light optical element (130) is configured for leaving the emitted infrared light pattern uninfluenced.
G01B 11/25 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures by projecting a pattern, e.g. moiré fringes, on the object
An optoelectronic apparatus (112) is proposed configured for emitting at least one infrared light pattern (124) comprising a plurality of infrared light beams and for emitting infrared flood light (128), comprising: - a base (114) providing at least four platforms (116) of alternating heights with respect to the base (114), wherein the heights of the platforms (116) alternate between a first height and a second height, different from the first height; - a light emitter structure (118) comprising a plurality of light emitters (120), wherein at least one light emitter (120) is mounted on each platform (116), wherein the light emitters (120) mounted on platforms (116) of the first height form a pattern illumination source (122) configured for emitting the infrared light pattern (124), wherein the light emitters mounted on platforms (116) of the second height form a flood illumination source (126) configured for emitting the infrared flood light (128).
G01B 11/25 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures by projecting a pattern, e.g. moiré fringes, on the object
The invention is in the field of portable spectrometer devices. It relates to a spectrometer comprising a. an interface to an application, wherein the interface is configured to receive a request for performing a spectroscopic measurement and to provide spectroscopic measurement results to the application, b. a spectrometer module which is configured to receive electromagnetic radiation and generate spectroscopic data comprising intensity values, wherein each intensity value is indicative of the intensity of the electromagnetic radiation in at least a part of its spectral range, and c. a processor which is configured to trigger the spectrometer module to execute a spectroscopic measurement in response to a request received through the interface and to receive spectroscopic data from the spectrometer module, wherein the processor is further configured to derive composition data from the spectroscopic data and to provide the spectroscopic data and the composition data to the interface.
G01N 21/27 - ColourSpectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection
12.
SKIN ROUGHNESS AS SECURITY FEATURE FOR FACE UNLOCK
A computer-implemented method for authenticating a user (114) of a device (102) is proposed. The method comprising: a. (302) receiving a request for accessing one or more functions associated with the device (102); b. executing at least one authentication process comprising the following steps: b.1 (304) triggering to illuminate the user (114) by coherent electromagnetic radiation associated with a wavelength between 850 nm and 1400 nm, b.2 (306) triggering to generate at least one speckle image of the user (114) while the user is being illuminated by the coherent electromagnetic radiation, b.3 (308) determining at least one surface roughness measure based on the speckle image, b.4 (310) authenticating the user (114) or denial using the surface roughness measure.
The invention is in the field of portable spectrometer devices. It relates to a spectrometer comprising a. an interface to an application, wherein the interface is configured to receive a request for performing a spectroscopic measurement and to provide spectroscopic measurement results to the application, b. a spectrometer module which is configured to receive electromagnetic radiation and generate spectroscopic data comprising intensity values, wherein each intensity value is indicative of the intensity of the electromagnetic radiation in at least a part of its spectral range, and c. a processor which is configured to trigger the spectrometer module to execute a spectroscopic measurement in response to a request received through the interface and to receive spectroscopic data from the spectrometer module, wherein the processor is further configured to derive composition data from the spectroscopic data and to provide the spectroscopic data and the composition data to the interface.
A device (110) for authenticating a user (112) is proposed. The device (110) comprising: - at least one projector (116) configured for projecting a plurality of light beams through at least one display (118) onto the user (112), - at least one image generation unit (122) configured for generating a pattern image showing the projecting of the plurality of light beams onto the user (112); - at least one processor (124) configured for extracting liveness data from the pattern image and allowing the user (112) to perform an operation on the device (110) that requires authentication based on the liveness data; - at least one control unit (126) and at least one status inquiry device (128) configured for retrieving at least one item of status information on a current environmental status of the device (110), wherein the control unit (126) is configured for automatically triggering at least one calibration depending on the fulfillment of at least one predetermined environmental status condition.
The invention relates to the field of biometric authentication, in particular to the field of anti-spoofing. The disclosure relates to methods, apparatuses, devices, material information and computer elements for authorizing a user of a device to perform at least one operation that requires authentication.
It relates to a method (110) for verifying at least one attribute of a virtual character in a virtual environment associated with a user, the method (110) comprising: -receiving a request (112) to verify at least one attribute of the virtual character, -receiving at least one pattern image (114) showing the user associated with the virtual character while the user is being illuminated by patterned infrared illumination, -determining if the user corresponds to a living human (116) based on the at least one pattern image, -providing an indication (118) on that the at least one attribute of the virtual character is verified based on the determining if the user corresponds to a living human based on the at least one pattern image.
The present invention relates to an optical element (110), wherein the optical element (110) comprises: (1) at least one lens element (112), wherein the lens element (112) comprises at least one optical lens (114); (2) at least one optoelectronic component (116), wherein the optoelectronic component (116) is configured for emitting and/or detecting light (126) through the optical lens (114); (3) at least one supporting member (118), wherein the optoelectronic component (116) is arranged between the lens element (112) and the supporting member (118); and (4) at least one electrical wire (120), wherein the electrical wire (120) is secured to the supporting member (118), wherein the electrical wire (120) secures the optical lens (114) to the optoelectronic component (116) in a manner that it breaks when the optical lens (114) dislocates from the optoelectronic component (116) so that at least a portion of the illumination light (126) emitted and/or detected by the optoelectronic component (116) avoids the optical lens (114).
F21V 5/04 - Refractors for light sources of lens shape
F21V 17/10 - Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
F21V 25/04 - Safety devices structurally associated with lighting devices coming into action when lighting device is disturbed, dismounted, or broken breaking the electric circuit
G01S 7/481 - Constructional features, e.g. arrangements of optical elements
G01S 17/89 - Lidar systems, specially adapted for specific applications for mapping or imaging
G06V 40/16 - Human faces, e.g. facial parts, sketches or expressions
H01S 5/068 - Stabilisation of laser output parameters
H01S 5/183 - Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only vertical cavities, e.g. vertical cavity surface-emitting lasers [VCSEL]
The invention relates to the field of biometric authentication, in particular to the field of anti-spoofing. The disclosure relates to methods, apparatuses, devices, material information and computer elements for generating biometric authentication information.
A photodetector (112) is disclosed, comprising at least one photosensitive element (120) having a resistance depending on an illumination by light, wherein the photodetector (112) further comprises at least one readout circuit (124), the readout circuit (124) comprising: - at least one input circuit (126) configured for providing at least one bias voltage (128) to the photosensitive element (120), the bias voltage (128) being adaptable between at least one first voltage (130) in an illumination phase (132) and ground (134) in a dark phase (136); - at least one integrator circuit (142) for storing photoelectric charges generated by the photosensitive element (120), the integrator circuit (142) comprising at least one operational amplifier (144) and at least one capacitor (146), the photosensitive element (120) being connected to an inverting input (148) of the operational amplifier (144) and the capacitor (146) being connected to an output (150) of the operational amplifier (144), wherein the capacitor (146) is configured for storing dark current charges and illumination charges during the illumination phase (132), wherein the integrator circuit (142) is configured for reversing current flow of the dark current charges in the dark phase (136) thereby removing the dark current charges from the capacitor (146); - at least one trimmed voltage divider (152) connected to the input circuit (126) and to a non-inverting input (154) of the operational amplifier (144); and - at least one analog-to-digital converter (164) for converting the illumination charges stored in the integrator circuit (142) into one voltage value (182). Further disclosed is a system (110) comprising the photodetector (112), a method for converting illumination charges and a computer program and a computer-readable storage medium for performing the method.
A spectrometer device (110) for obtaining spectroscopic information on at least one object (112) is disclosed, comprising at least one detector (114) for detecting light; at least one light source (118) configured for emitting light in at least one optical spectral range; at least one sample interface (120) configured for allowing the emitted light of the light source (118) to leave the spectrometer device (110) through the sample interface (120) and configured for allowing detection light to enter the spectrometer device (110) through the sample interface (120), wherein the sample interface (120) comprises at least one optical element configured for providing at least one internal calibration target; at least one optical path (122), wherein the optical path (122) is configured for allowing the emitted light of the light source (118) to propagate to the sample interface (120) and for allowing detection light to propagate to the detector (114), wherein the optical path (122) is further configured for allowing the emitted light of the light source (118) to propagate to the internal calibration target and for allowing reference emission to be directed by the internal calibration target to the detector (114). The spectrometer device (110) is configured for separating the reference emission and the detection light from each other by polarization multiplexing. The spectrometer device (110) is configured for I. (138) illuminating through the sample interface (120) with light having a first polarization via the at least one optical path (122) to obtain at least one first detector signal relating to the detection light; II. (140) illuminating the internal calibration target with light having a second polarization, different from the first polarization, via the optical path (122) to obtain at least one calibration signal relating to the reference emission; and III.(142) determining at least one item of calibration information by using the first detector signal and the calibration signal.
G01N 21/27 - ColourSpectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection
G01N 21/359 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using near infrared light
A method for authenticating a user of a device (110) is disclosed. The method comprising: a. projecting (130) a plurality of light beams through a display (114) onto the user by a projector (112), wherein an emission angle of the projector (112) is below or equal to 60°, b. generating (132) a pattern image showing the projecting of the plurality of light beams onto the user, c. extracting (134) liveness data from the pattern image, d. allowing (136) the user to perform an operation on the device (110) that requires authentication based on the liveness data.
The invention relates to a spectrometer device (110) for determining an item of spectral information on at least one object (112), the spectrometer device (110) comprising: - at least one sample interface (130), wherein the sample interface (130) defines at least one component of a predetermined pose of the object (112) when the item of spectral information is determined; - at least one light emitting element (116), wherein the at least one light emitting element (116) is designated to emit illumination light (118) onto the object (112) for generating object light (119); - at least two photosensitive detectors (122) that generate at least two detector signals when receiving light, wherein the photosensitive detectors (122) are designated to receive at least a portion of the generated object light (119); - at least one evaluation unit (140), wherein the at least one evaluation unit (140) is configured to consider the detector signals of the at least two photosensitive detectors (122) for determining an item of placement information on the object (112).
A method for authenticating a user of a device comprising an illumination source, the method comprising: a) receiving a visible light image showing the object while the object is illuminated with visible light, b) receiving an IR pattern image showing the object while the object is illuminated with an infrared light pattern emitted from the illumination source, c) determining if a material indicator associated with the object shown in the IR pattern image corresponds to a living organism, in particular by providing the IR pattern image to an IR data-driven model parametrized based on an IR training data set comprising at least one training IR pattern image and at least one training material indicator, wherein the IR data-driven model provides a material indicator based on the IR pattern image, d) determining if the object shown in the visible light image corresponds to an authorized user, and, e1) allowing the object to access at least one function of the device based on determining that the object shown in the visible light image corresponds to an authorized user and determining that the material indicator corresponds to a living subject, or e2) declining the object to access at least one function of the device based on determining that the object shown in the visible light image corresponds to an unauthorized object and/or the material indicator corresponding to a non-living subject.
The invention relates to an optical unit (114) for a spectrometer device (112) for analyzing at least one sample (116). The optical unit (114) comprises a plurality of light emitting elements (120) configured for emitting light for illuminating the sample (116); a conical light guide (122) comprising at least one scattering element (124) arranged between opposing, differently sized openings (126) of the conical light guide (122), the conical light guide (122) being configured for scattering at least part of the light emitted by the light emitting elements (120); at least one reflector (128) configured for reflecting at least part of the light scattered by the light guide (122) in a direction toward the sample (116), wherein the light emitting elements (120) and the reflector (128) are arranged on a side of the conical light guide (122) having the bigger opening (130), wherein the sample (116) is placeable on a side of the conical light guide (122) having the smaller opening (132). Further disclosed are a spectrometer device (112), a spectrometer system (110) and various uses of the spectrometer device (112).
G01N 21/3563 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing solidsPreparation of samples therefor
The invention relates to a method for generating an IR image by a detector (110), wherein the detector (110) comprises a first plurality of IR pixels (112, 118, 236) and at least one second plurality of IR pixels (112, 118, 238), wherein the IR pixels (112, 118) comprised by the detector (110) are arranged in a plurality of rows, wherein the first plurality of IR pixels (112, 118, 236) comprises at least one first row of IR pixels (237) of the plurality of rows, wherein the at least one second plurality of IR pixels (112, 118, 238) comprises at least one second row of IR pixels (239) of the plurality of rows, wherein a read out of the pixels (112, 118, 122) for determining the pixel values is performed sequentially by reading out the at least one first row and then reading out the at least one second row, the method comprising: - illuminating an object by IR light; - receiving detection light from the object generated by the illuminated IR light at the first plurality of I R pixels (112, 118, 236); - determining the pixel values of the first plurality of IR pixels (112, 118, 236) by reading out the at least one first row of IR pixels (237), wherein illuminating the object is stopped before reading out the at least one first row; - further illuminating the object by IR light; - receiving detection light from the object generated by the illuminated IR light at the second plurality of IR pixels (112, 118, 238); - determining the pixel values of the second plurality of IR pixels (112, 118, 238) by reading out the at least one second row of IR pixels (239), wherein further illuminating is stopped before reading out the at least one second row; - providing the IR image based on the pixel values of the first plurality of IR pixels (112, 118, 236) and the pixel values of the at least one second plurality of IR pixels (112, 118, 238).
H04N 25/131 - Arrangement of colour filter arrays [CFA]Filter mosaics characterised by the spectral characteristics of the filter elements including elements passing infrared wavelengths
H04N 23/11 - Cameras or camera modules comprising electronic image sensorsControl thereof for generating image signals from different wavelengths for generating image signals from visible and infrared light wavelengths
H04N 25/531 - Control of the integration time by controlling rolling shutters in CMOS SSIS
H04N 23/12 - Cameras or camera modules comprising electronic image sensorsControl thereof for generating image signals from different wavelengths with one sensor only
H04N 23/56 - Cameras or camera modules comprising electronic image sensorsControl thereof provided with illuminating means
26.
SPECTRAL SENSING DEVICE AND METHOD OF DETERMINING AT LEAST ONE RELATIVE TIME-CORRECTED DETECTOR SIGNAL OF AT LEAST ONE SAMPLE
A spectral sensing device (110) is disclosed, comprising - at least one first light source (112) configured for emitting light in at least one first optical spectral range and at least one second light source (114) configured for emitting light in at least one second optical spectral range; - at least one detector (122) comprising a plurality of sensor elements (124), wherein each of the sensor elements (124) is configured for generating at least one detector signal in response to an illumination of the sensor element (124) by incident light; - at least one sample interface (128) configured for allowing light emitted from the first light source (112) to illuminate at least one sample (130); - at least one first optical path (132) configured for allowing light emitted from the first light source (112) to propagate to the detector (122) by passing the sample interface (128) at least once; and - at least one second optical path (134) allowing light emitted from the second light source (114) to propagate to the detector (122) without passing the sample interface (128), wherein the second light source (114) is positioned to illuminate each of the sensor elements (124) with the entire second optical spectral range. Further disclosed are a method of determining at least one relative time-corrected detector signal of at least one sample (130), a computer program and a computer-readable storage medium for performing the method.
A method for measuring a surface roughness associated with an object, the method comprising: a) receiving a speckle image showing an object while being illuminated by coherent electromagnetic radiation associated with a wavelength between 850 nm and 1400 nm, b) determining a surface roughness measure based on the Speckle image, c) providing the surface roughness measure.
A method for authenticating a user of a device (110) is proposed. The method comprising: a. projecting (130) a plurality of light beams through a display (114) onto the user by a projector (112), wherein the plurality of light beams comprises a first light beam and a second light beam, and directing the first light beam and the second light beam to illuminate an at least partially overlapping area of the user by the display (114), b. generating (132) a pattern image showing the projecting of the plurality of light beams onto the user, c. extracting (134) liveness data from the pattern image, d. allowing (136) the user to perform an operation on the device (110) that requires authentication based on the liveness data.
The present invention refers to a spectrometer device (110) for obtaining spectroscopic information on at least one object (112), the spectrometer device (110) comprising: i. at least one first light source (114) for generating illumination light (116) for illuminating the object (112), the first light source (114) comprising at least one first light-emitting diode (118) and at least one first luminescent material (120) for light-conversion of primary light generated by the first light-emitting diode (118); ii. at least one second light source (114') for generating illumination light (116') for illuminating the object (112), the second light source (114') comprising at least one second light-emitting diode (118') and at least one second luminescent material (120') for light-conversion of primary light generated by the second light-emitting diode (118'); iii. at least one detector (128) for detecting detection light (130) from the object (112) and for generating at least one detector signal for each of the first light source (114) and the second light source (114') thereby; iv. at least one driving unit (138) for electrically driving the first light source (114) and the second light source (114'), the driving unit (138) being configured for jointly driving the first light source and the second light source; and v. at least one evaluation unit (136) for evaluating the detector signals generated by the detector (128) and for deriving the spectroscopic information on the object (112) from the detector signals.
H01L 25/16 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices the devices being of types provided for in two or more different subclasses of , , , , or , e.g. forming hybrid circuits
A spectrometer device (110) for obtaining spectroscopic information on at least one object (112) is disclosed. The spectrometer device (110) comprises: - at least one detector (116) for detecting light from an object (112); - at least one optical filter (122) configured for transferring incident light within at least one selected wavelength range onto the detector (116); - at least one light source (126) configured for emitting light in at least one optical spectral range; - at least one sample interface (132) configured for allowing the emitted light of the light source(126) to illuminate an object (112) held by the sample interface (132) and configured for allowing light from the object (112) held by the sample interface (132) to propagate via the optical filter (122) to the detector (116), wherein the sample interface (132) comprises at least one module cover window (134) comprising at least one substrate (136), wherein the module cover window (134) comprises at least one internal calibration target (138) partially covering the substrate (136); - at least one first optical path (140), wherein the first optical path (140) is configured for allowing the emitted light of the light source (126) to propagate via the optical filter (122) to the detector (116) by passing the sample interface (132) at least once; and - at least one second optical path (142), wherein the second optical path (142) is configured for allowing the emitted light of the light source (126) to propagate via the optical filter (122) to the detector (116) by interacting with the internal calibration target (138) at least once.
A spectrometer device (110) and a method of obtaining spectroscopic information on at least one object (112) are disclosed. The spectrometer device (110) comprises: i. at least one light source (114) for generating illumination light (116) for illuminating the object (112), the light source (114) comprising at least one light-emitting diode (118) and at least one luminescent material (120) for light-conversion of primary light generated by the light-emitting diode (118) into secondary light, wherein the illumination light (116) at least partially comprises the primary light and the secondary light; ii. at least one broadband detector (128) for detecting detection light (130) from the object (112) in a spectral range at least partially comprising the spectral ranges of the primary light and the secondary light, wherein the broadband detector (128) is configured for generating at least one primary detector signal upon detecting the detection light (130) in the spectral range of the primary light, wherein the broadband detector (128) is further configured for generating at least one secondary detector signal upon detecting the detection light (130) in the spectral range of the secondary light; and iii. at least one evaluation unit (136) for evaluating the primary detector signal and the secondary detector signal generated by the broadband detector (128), for determining temperature information (137) on the light source (114) from one of the primary detector signal or the secondary detector signal, and for deriving the spectroscopic information on the object (112) from the other of the primary detector signal or the secondary detector signal by taking into account the temperature information (137) on the light source (114).
A spectrometer device (110) and a method of obtaining spectroscopic information on at least one object (112) are disclosed. The spectrometer device (110) comprises: at least one light source (114) for generating illumination light (116) for illuminating the object (112), the light source (114) comprising at least one light-emitting diode (118) and at least one luminescent material (120) for light-conversion of primary light generated by the light-emitting diode (118) into secondary light; ii. at least one broadband detector (128) for detecting detection light (130) in a spectral range at least partially comprising the spectral ranges of the primary light and the secondary light, wherein the broadband detector (128) is configured for generating at least one primary detector signal upon detecting the detection light (130) in the spectral range of the primary light, wherein the broadband detector (128) is further configured for generating at least one secondary detector signal upon detecting the detection light (130) in the spectral range of the secondary light; and iii. at least one evaluation unit (136) for evaluating the primary detector signal and the secondary detector signal generated by the broadband detector (128), for determining responsivity information (137) on the broadband detector (128) from one of the primary detector signal or the secondary detector signal, and for deriving the spectroscopic information on the object (112) from the other of the primary detector signal or the secondary detector signal by taking into account the responsivity information (137) on the broadband detector (128).
A spectrometer device (110) and a method of obtaining spectroscopic information on at least one object (112) are disclosed. The spectrometer device (110) comprises: i. at least one light source (114) for generating illumination light (116) for illuminating the object (112), the light source (114) comprising at least one light-emitting diode (118) and at least one luminescent material (120) for light-conversion of primary light generated by the light-emitting diode (118) into secondary light, wherein the illumination light (116) at least partially comprises the primary light and the secondary light; ii. at least one broadband detector (128) for detecting detection light (130) from the object (112) in a spectral range at least partially comprising the spectral ranges of the primary light and the secondary light, wherein the broadband detector (128) is configured for generating at least one primary detector signal upon detecting the detection light (130) in the spectral range of the primary light, wherein the broadband detector (128) is further configured for generating at least one secondary detector signal upon detecting the detection light (130) in the spectral range of the secondary light; and iii. at least one evaluation unit (136) for evaluating at least one of the primary detector signal and the secondary detector signal generated by the broadband detector (128) and for determining the spectroscopic information on the object (112) from at least one of the primary detector signal and the secondary detector signal.
H01L 25/16 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices the devices being of types provided for in two or more different subclasses of , , , , or , e.g. forming hybrid circuits
36.
CALIBRATION AND OPERATION METHODS FOR DEVICES FOR MONITORING AN EMISSION TEMPERATURE
The invention refers to a calibration method of assembling a set of items of information for use in a method for operating a measurement device (110) for monitoring an emission temperature of at least one radiation emitting element (114), wherein the measurement device (110) comprises a detector module (112), a transition material (116) and an assembly unit (111 ), wherein the detector module (112) and the transition material (116) are designated for being integrated into the assembly unit (111) when performing the method for operating a measurement device (110) for monitoring an emission temperature of at least one radiation emitting element (114) in a manner that the transition material (116) is arranged between the detector module (112) and the radiation emitting element (114) such that radiation generated by the radiation emitting element (114) incident onto the detector module (112) is propagating through the transition material (116), wherein the detector module (112) is designated for generating at least one sensor signal depending on an intensity of the thermal radiation, the method comprising the following steps: (i) performing a plurality of calibration measurements for determining at least one relationship (352) between at least one sensor signal and at least one temperature of a radiation emitting element (114) by measuring a plurality of sensor signals for at least two different emission temperatures of at least one radiation emitting calibration element when the detector module (112) and the transition material (116) are separate from the assembly unit (111); (ii) performing at least one further calibration measurement for determining at least one correction for the at least one relationship (352) by measuring at least one sensor signal for at least one known emission temperature of at least one radiation emitting calibration when the detector module (112) and the transition material (116) are integrated in the assembly unit (111); (iii) recording the relationship (352) and the correction.
G01J 5/20 - Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using resistors, thermistors or semiconductors sensitive to radiation, e.g. photoconductive devices
The invention is in the area of polymer compositions containing carbon particles suitable for infrared spectroscopy. It relates to a polymer composition containing - a polymer, - carbon particles and - a laser absorbing additive, wherein at least a part of the surface of the polymer composition absorbs less infrared radiation than the bulk.
A display device (100) is disclosed, comprising: - at least one pattern illumination source (112) configured for emitting an infrared light pattern (116), - at least one flood illumination source (114) configured for emitting infrared flood light (118), - at least one image generation unit (150) configured for generating at least one pattern image while the pattern illumination source (112) is emitting the infrared light pattern (116) and configured for generating at least one flood image while the flood illumination source (114) is emitting infrared flood light (118), - at least one masking element (130) configured for covering at least one contiguous area around the flood illumination source (114) and/or the pattern illumination source (112), - at least one display (140) configured for displaying content, wherein the display (140) covers at least partially the pattern illumination source (112), the flood illumination source (114), the masking element (130) and/or the image generation unit (150).
BiasoutRefRefBiasoutRef RefoutRef Ref through the reference resistor (182) thereby estimating the bias voltage influence for obtaining the spectroscopic information, wherein the spectroscopic information on the object (112) is compensated for the bias voltage influence.
G01J 5/90 - Testing, inspecting or checking operation of radiation pyrometers
G01J 5/44 - Radiation pyrometry, e.g. infrared or optical thermometry using extension or expansion of solids or fluids using change of resonant frequency, e.g. of piezoelectric crystals
A spectrometer device (110) and a method of obtaining spectroscopic information on at least one object (112) are disclosed. The spectrometer device (110) comprises: i. at least one light source (114) for generating illumination light (116) for illuminating the object (112); ii. at least one detector (128) for detecting detection light (130) from the object (112) and generating at least one detector signal; iii. at least one driving unit (138) for electrically driving the light source (114); iv. at least one multi-channel read-out integrated circuit (139), wherein each channel of the multi-channel read-out integrated circuit (139) comprises at least one buffered direct injection (BDI) circuit (141), wherein the BDI circuit (141 ) is configured for read-out of the detector signal, wherein the BDI circuit (141) is configured for generating at least one item of information on an electrically measurable quantity required for driving the light source (114), wherein the multi-channel read-out integrated circuit (139) comprises at least one multi-channel read-out application-specific integrated circuit (ASIC) (142) configured for synchronous sampling the detector signal and the item of information on the electrically measurable quantity required for driving the light source (114); and v. at least one evaluation unit (136) for evaluating at least one detector signal generated by the detector (128) and for deriving the spectroscopic information on the object (112) from the detector signal, wherein the evaluation unit (136) is configured for taking into consideration the item of information on the electrically measurable quantity required for driving the light source (114) when deriving the spectroscopic information from the detector signal.
The invention relates to a method of operating a spectrometer device (110) for obtaining spec troscopic information on at least one object (112), the method comprising, particularly, evaluating the detector (128) signal deriving the spectroscopic information on the object (112) thereof by using at least one evaluation unit (136) of the spectrometer device (110), the evaluation unit (136) being configured for selecting at least one item of correction information from a predetermined set of items of correction information in accordance with the actual value of the at least one operating parameter and for taking the selected item of correction information into account for the deriving of the spectroscopic information. The invention further relates to, a calibration method of assembling a set of items of correction information, a spectrometer device (110) for obtaining spectroscopic information on at least one object (112), a computer program, a computer-readable storage medium and to a non-transient computer-readable medium. The invention has the advantage that the operating parameter may provide for a reliable correction parameter, particularly as the ambient temperature may be considered. Thereby, a fluctuation in a spectral flux of the at least one light source (114) and/or in spectral property, specifically a shift, of the at least one light source (114) may be compensated.
A spectrometer device (110) for obtaining spectroscopic information on at least one object (112) is proposed. The spectrometer device (110) comprises: i. at least one light source (114) for generating illumination light (116) for illuminating the object (112), the light source (114) comprising at least one light-emitting diode (118) and at least one luminescent material (120) for light-conversion of primary light generated by the light-emitting diode (118); ii. at least one detector (128) for detecting detection light (130) from the object (112); iii. at least one driving unit (138) for electrically driving the light source (114); iv. at least one measurement unit (139) for generating at least one item of information on at least one electrically measurable quantity, in particular a forward voltage, required for driving the light-emitting diode (118); and v. at least one evaluation unit (136) for evaluating at least one detector signal generated by the detector (128) and for deriving the spectroscopic information on the object (112) from the detector signal, wherein the evaluation unit (136) is configured for taking into consideration the item of information on the at least one electrically measureable quantity, in particular the forward voltage, when deriving the spectroscopic information from the detector signal.
A spectrometer device (110) for obtaining spectroscopic information on at least one object (112), the spectrometer device (110) comprising: i. at least one light source (114) for generating illumination light (116) for illuminating the object (112), the light source (114) comprising at least one light-emitting diode (118) and at least one luminescent material (120) for light-conversion of primary light generated by the light-emitting diode (118);10 ii. at least one detector (128) for detecting light (116, 130, 256) and, thereby, generating at least one detector signal; iii. at least one evaluation unit (136) configured for deriving the spectroscopic information on the object (112) from the at least one detector signal, wherein the evaluation unit (136) is configured for deriving the spectroscopic information on the object (112) by taking into consideration wavelength correction information.
G01N 21/27 - ColourSpectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection
G01J 3/10 - Arrangements of light sources specially adapted for spectrometry or colorimetry
H01L 25/16 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices the devices being of types provided for in two or more different subclasses of , , , , or , e.g. forming hybrid circuits
44.
CONSIDERING A TIME CONSTANT FOR OBTAINING SPECTROSCOPIC INFORMATION
A spectrometer device (110) for obtaining spectroscopic information on at least one object (112), the spectrometer device (110) comprising: (i) at least one light source (114) configured for generating illumination light (116) for illuminating the object (112), the light source (114) comprising at least one lightemitting diode (118) and at least one luminescent material (120) for light-conversion of primary light generated by the light-emitting diode (118), wherein the spectrometer device (110) is configured for driving the light source (114) in a manner that the driving state of the light source (114) is changed at least one time; (ii) at least one detector (128) configured for detecting light and, thereby, generating at least one detector signal when the driving state of the light source (114) is changed, wherein the detector signal is time resolved; (iii) at least one evaluation unit (136) configured for deriving the spectroscopic information on the object (112) by detecting detection light from the object (112) by using the detector (128), and further configured for deriving at least one time constant T of the light source (114) describing a property of the light source (114) when the driving state is changed from the time resolved detector signal, wherein the at least one time constant T is considered when the spectroscopic information on the object (112) is derived.
λλ, wherein the evaluation (136) unit is configured for correcting for a temperature dependent drift of the detector (128) in the detector signal Sλ by using the reference detector signal R.
A spectrometer device (110) for obtaining spectroscopic information on at least one object (112) is disclosed. The spectrometer device (110) comprises: i. at least one light source (114) for generating illumination light (116) for illuminating the object (112), the light source (114) comprising at least one light-emitting diode (118) for generating primary light and at least one luminescent material (120) for light-conversion of the primary light into secondary light; ii. at least one detector for detecting detection light from the object (112) and for generating at least one detector signal; iii. at least one driving unit (138) for driving the light source (114) in a manner that the light-emitting diode (118) is generating the primary light, wherein the light-emitting diode (118) is driven with a pulse modulation scheme having a variable duty cycle for controlling an emission power of the secondary light, wherein the duty cycle is varied based on an influencing parameter having an influence on the light- conversion efficiency of the luminescent material (120); and iv. at least one evaluation unit (136) for evaluating the detector signal generated by the detector and for deriving the spectroscopic information on the object (112) from the detector signal. Furthermore, a corresponding method of obtaining spectroscopic information on at least object (112) is disclosed.
H01L 25/16 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices the devices being of types provided for in two or more different subclasses of , , , , or , e.g. forming hybrid circuits
47.
CONSIDERING A PLURALITY OF TIME CONSTANTS τ FOR OBTAINING SPECTROSCOPIC INFORMATION
A spectrometer device (110) for obtaining spectroscopic information on at least one object (112), the spectrometer device (110) comprising: (i) at least one light source (114) configured for generating illumination light (116) for illuminating the object (112), the light source (114) comprising at least one light-emitting diode (118) and at least one luminescent material (120) for light-conversion of primary light generated by the light-emitting diode (118), wherein the spectrometer device (110) is configured for driving the light source (114) in a manner that the driving state of the light source (114) is changed at least one time; (ii) at least one detector (128) configured for detecting detection light (130) from the object (112) and, thereby, generating at least one detector signal when the driving state of the light source (114) is changed, wherein the detector signal is time-resolved; (iii) at least one evaluation unit (136) configured for evaluating the detector signal generated by the detector (128) for deriving the spectroscopic information on the object (112), and further configured for considering a plurality of known time constants (τ) of the light source (114) describing a property of the light source (114) when the driving state is changed for determining a contribution of signal intensities of a plurality of wavelength intervals (236) to the detector signal when the spectroscopic information on the object (112) is derived.
121 212122(T) may provide for a reliable correction parameter. Thereby, a fluctuation in a spectral flux of the at least one light source (114) and/or in spectral property, specifically a shift, of the at least one light source (114) may be compensated.
A method for accessing a vehicle and/or a function of the vehicle, the method comprising: - illuminating the object with patterned infrared illumination; - generating at least one pattern image of the object while the object is being illuminated by the patterned infrared illumination; - determining if the object corresponds to a living human based the at least one pattern image; and - allowing the object to access the vehicle and/or the function of the vehicle based on de- termining that the object corresponds to a living human.
G07C 9/00 - Individual registration on entry or exit
G07C 9/37 - Individual registration on entry or exit not involving the use of a pass in combination with an identity check using biometric data, e.g. fingerprints, iris scans or voice recognition
G06Q 20/14 - Payment architectures specially adapted for billing systems
G06Q 20/30 - Payment architectures, schemes or protocols characterised by the use of specific devices
G06Q 20/32 - Payment architectures, schemes or protocols characterised by the use of specific devices using wireless devices
G06Q 20/40 - Authorisation, e.g. identification of payer or payee, verification of customer or shop credentialsReview and approval of payers, e.g. check of credit lines or negative lists
The present invention relates to an optoelectronic apparatus (112) comprising: - at least one pattern illumination source (114) configured for emitting at least one infrared light pattern comprising a plurality of infrared light spots, wherein the number of infrared light spots is below or equal 4000 spots, - at least one flood illumination source (116) configured for emitting infrared flood light, - at least one image generation unit (118) configured for generating at least one pattern image while the pattern illumination source (114) is emitting the infrared light pattern and configured for generating at least one flood image while the flood illumination source (116) is emitting infrared flood light. The present invention further relates to a use of an optoelectronic apparatus (112), a method for authenticating a user of a device (110), a computer program, a computer-readable storage medium and a non-transient computer-readable medium. The present invention provides an approach of making a rearrangement of the position of the camera as well as an improved operation of active techniques of authentication using devices (110) behind a display (120) possible.
An optoelectronic apparatus (112) is disclosed, comprising: - at least one pattern illumination source (114) configured for illuminating at least one infrared light pattern comprising a plurality of infrared light spots, wherein the number of infrared light spots is below or equal 4000 spots, - at least one flood illumination source (116) configured for emitting infrared flood light, - at least one image generation unit (118) configured for generating at least one pattern image while the pattern illumination source (114) is illuminating infrared light pattern and configured for generating at least one flood image while the flood illumination source (116) is emitting infrared flood light. A relative distance between the flood illumination source (116) and the pattern illumination source (114) is below 3.0 mm. (Figure 1)20
The invention is in the field of authentication system for vehicles. It relates to an authentication system for vehicles comprising a transparent display attached to the vehicle, a projector positioned such that it can illuminate light through the transparent display to a per- son, a camera positioned such that it can receive light from the person through the transparent dis- play, and a processor which receives an image from the camera and is configured to determine if the im- aged person is an authorized person, wherein the processor is configured to output a signal in- dicating if the imaged person is authorized.
A method of obtaining chemical composition information of at least one sample (112) by spectroscopic measurement is proposed. The method comprises the following steps: i. acquiring spectroscopic data of the sample (112) by using at least one spectrometer device (114), within at least one spatial measurement range (118) of the spectrometer device (114); ii. acquiring, by using at least one imaging device (134), image data of a scene (136) within a field of view (138) of the imaging device (134), the scene (136) comprising at least a part of the sample (112) and at least a part of the spatial measurement range (118) of the spectrometer device (114), and analyzing the image data and/or the spectroscopic data thereby determining at least one item of identification information on the sample (112) by using at least one processing device (154); and iii. evaluating the spectroscopic data for obtaining at least one item of sample information by using the processing device (154), wherein the evaluating comprises processing the spectroscopic data with at least one chemometric model, wherein the chemometric model translates the spectroscopic data into chemical composition information, wherein the chemometric model is selected in accordance with the item of identification information.
G01N 21/31 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
G01N 21/3563 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing solidsPreparation of samples therefor
G01N 21/359 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using near infrared light
G01N 21/84 - Systems specially adapted for particular applications
The invention relates to a method (100) for arranging an optical measurement device (300) comprising the following steps: (a) determining at least one feature (202) (102) in a reference spectrum (200) generated by a reference sample (400) (b) selecting at least one optical filter (320) (106) configured for having an acceptance wavelength range covering at least one wavelength assigned to at least a portion of the at least one feature (202); (c) providing at least one detector (312) (108) configured for generating at least one detector (312) signal related to incident radiation, and providing the selected at least one optical filter (320); wherein the at least one optical filter (320) is arranged in a field of view (350) of the at least one detector (312); (d) adjusting an cone angle (352) of the at least one optical filter (320) by considering a dependency of the at least one optical filter (320) arranged in the field of view (350) of the at least one detector (312) on an angle of radiation incident on the at least one optical filter (320) in a manner that an radiant flux of the radiation through the optical filter (320) is optimized. The invention further relates to an evaluation device, a computer program, a computer-readable storage medium and an optical measurement device (300). A spectrometer device arranged by the presented method (100) has a reduced signal-to-noise ratio, an increased accuracy and/or repeatability.
A method for measuring a performance of an illumination source emitting electromagnetic radiation, the method comprising: - receiving an image showing a projection of electromagnetic radiation onto an object associated with a quantity indicative of an intensity corresponding to at least one part of the image, - determining a performance indicator of the illumination source corresponding to a part of the image from the quantity indicative of the intensity by using a relation of a quantity indicative of an intensity and a performance indicator, - providing the performance indicator.
The present invention refers to a spectrometer device (100) for a classification of a sample (200) comprising at least one evaluation device (118), wherein the at least one evaluation device (118) is configured for performing a physical classification of the sample (200) and a chemical classification of the sample (200) by considering a first detector module (106) signal and a second detector module (112) signal. The present invention further refers a method for a classification of a sample, a computer program and a non-transient computer-readable storage medium. The spectrometer device for a classification of a sample, the method for a classification of a sample, the computer program and the non-transient computer-readable storage medium provide a compact spectrometer device that may be capable of a reliable, easy, versatile and fast classification of a sample.
G01N 21/31 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
G01N 21/17 - Systems in which incident light is modified in accordance with the properties of the material investigated
H04N 25/683 - Noise processing, e.g. detecting, correcting, reducing or removing noise applied to defects by defect estimation performed on the scene signal, e.g. real time or on the fly detection
H04N 17/00 - Diagnosis, testing or measuring for television systems or their details
59.
A SPECTROMETER SYSTEM AND A METHOD FOR CALIBRATING A PHOTOSENSITIVE DETECTOR OF A PORTABLE DEVICE
The present invention refers to a spectrometer system (100), wherein the spectrometer system (100) is comprising: - at least one portable device (110) comprising at least one temperature sensing element (116) configured for determining at least one temperature of the at least one portable device (110) in a manner that a temperature protocol is provided; - at least one charging device (150) for the portable device (110) comprising at least reference material (152), wherein the reference material (152) is configured for providing a reference signal when the reference material (152) is illuminated by radiation generated by at least one radiation emitting element (112) comprised by the at least one portable device (110); wherein at least one evaluation device (118) comprised by the at least one portable device (110) is further configured for calibrating the portable device (110) by analyzing the reference signal generated by the reference material (152), wherein the temperature protocol is considered during the calibration of the portable device (110). The present invention further refers to a method for calibrating a photosensitive detector (114), a computer program and a non-transient computer-readable storage medium. The present invention has the advantage that it offers a calibration routine for the at least one portable device (110) that minimizes a temperature induced uncertainty in the measurement results.
A computer-implemented method for extracting a state of a material associated with an object, the method comprising: a) receiving at least one pattern image, wherein the at least one pattern image shows at least a part of the object under illumination by patterned electromagnetic radiation, b) changing and/or removing at least a part of the spatial information of the pattern image, c) determining a state of the material associated with the object based on the at least one pattern image, d) providing the state of the material associated with the object.
A computer-implemented method for authorizing an object, the method comprising: a) receiving at least one reflection image showing at least a part of the object while the object is illuminated at least partially with electromagnetic radiation, and, b) determining a distance of the object from an image generation unit and/or from an illumina- tion source based on the at least one reflection image, and, c) determining if the distance is within or outside of a working range of an authentication pro- cess, and, i) - receiving a result from the authentication process of the object, and, - allowing the object to access a resource based on the result from the authentication pro- cess being positive and the distance being in the working range of the authentication pro- cess. OR ii) - declining the object to access a resource based on the distance being outside of the working range.
220448WO01 - 38 - Method for calibrating a spectrometer device of a batch of spectrometer devices Abstract A method for calibrating a spectrometer device of a batch of spectrometer devices is disclosed. 5 The spectrometer device comprises at least one detector device comprising at least one optical element configured for separating incident light into a spectrum of constituent wavelength com- ponents and further comprising a plurality of photosensitive elements, wherein each photosensi- tive element is configured for receiving at least a portion of one of the constituent wavelength components and for generating a respective detector signal depending on an illumination of the 10 respective photosensitive element by the at least one portion of the respective constituent wavelength component, wherein the method comprises the following steps: a) at least one system characterization step comprising determining line spread functions at corresponding wavelengths by comparing at least one spectrum measured by using the spectrometer device with at least one reference spectrum;15 b) at least one resolution homogenization step comprising for each wavelength converting a resolution of the line spread function to a pre-defined target resolution for a corresponding wavelength, wherein the target resolution for each wavelength is a pre-defined target batch resolution value for the respective wavelength. 20 (Figure 1A)
Spectrometer device and system for detecting incident radiation generated by an object The invention relates to a spectrometer device (100) for detecting incident radiation generated by an object (200) and a spectrometer system (500). The spectrometer device (100) and the spectrometer system (500) for detecting incident radiation generated by an object (200) is comprising: a measurement window (120), a detector array (130), an optical filter (140), and at least one optical element (300) configured for modifying the field of view (134) of at least one pixelated sensor (132) by increasing at least one overlap between the field of views (134) of the at least two pixelated sensors (132), wherein the at least one optical element (300) comprises a first mirror selected from at least one of: o a first flat mirror (330); or o a first imaging mirror (336),and wherein the at least one optical element (300) comprises a second mirror selected from at least one of: o a second flat mirror (332); or o a second imaging mirror (334). The present invention exhibits the advantage that the spectrometer device (100) and the spectrometer system (500) are robust against the granularity of an object (200), particularly by providing sensor signal that may be correlated in a common measurement result, as the field of views (134) of the single pixelated sensors (132) have an increased overlap.
G01N 21/25 - ColourSpectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
G01N 21/31 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
A system (110) comprising at least one inter-integrated circuit node (I2C node) (112), at least one master controller (114) and at least one inter-integrated circuit (I2C) (116) is proposed. The I2C (116) is configured for transmitting data between the I2C node (112) and the master controller (114). The I2C node (112) provides a register map (118). The master controller (114) is configured for reading the register map (118) byte-wise. The I2C node (112) is configured for incrementing a register address after every byte. The register map (118) comprises a physical register map (120). Data of the physical register map (120) have a physical address in a memory of the I2C node (122). The I2C node (112) is configured for generating data which size is larger than the physical register map (120). The register map (118) comprises a virtual section, wherein data of the virtual section have an address in a further memory location (124). The master controller (114) is configured for reading the virtual section by performing a transaction which starts in the physical register map (118) and increasing the register address beyond the physical register map size.
G06F 9/50 - Allocation of resources, e.g. of the central processing unit [CPU]
G06F 12/1045 - Address translation using associative or pseudo-associative address translation means, e.g. translation look-aside buffer [TLB] associated with a data cache
G06F 12/1036 - Address translation using associative or pseudo-associative address translation means, e.g. translation look-aside buffer [TLB] for multiple virtual address spaces, e.g. segmentation
G06F 13/42 - Bus transfer protocol, e.g. handshakeSynchronisation
65.
METHOD FOR DETERMINING A CHARACTERISTIC VALUE OF AN OPTICAL SYSTEM
The present invention relates to a method (400) for determining a characteristic value of an optical system (100), wherein the optical system (100) comprises a sample (200) and an optical measurement device (300), wherein the optical measurement device (300) is configured for measuring a plurality of optical signals (302) generated from different portions of the sample (200), wherein a characteristic value of the optical system (100) is determined by evaluating a degree of variation of the plurality of optical signals (302). The characteristic value may be a size of at least one measurement spot (304); an optical resolution of the optical measurement device (300); and/or a characteristic extension (212) of a pattern (214) in the sample (200), wherein evaluating the degree of variation of the plurality of optical signals (302) comprises determining an interim value by using an average of the plurality of the optical signals (302) and the standard deviation of the plurality of the optical signals (302). The present invention further relates to an optical measurement device (300), an evaluation device (310), a computer program, a computer-readable storage medium and the use a sample (200) for performing the method (400) for determining a characteristic value of an optical system. The present invention exhibits the advantage of a reliable, fast and efficient approach for determining the characteristic value of an optical system and an optical measurement device.
A portable spectrometer (110) for performing at least one optical measurement on at least one measurement object (112) is proposed. The portable spectrometer (110) comprises: - at least one optical element (116) configured for separating incident optical radiation (114) provided by the measurement object (112) into a spectrum of constituent wavelength components; - at least one photosensor (120) comprising at least one photosensitive region (122) configured for receiving the optical radiation (114) from the optical element (116), wherein the photosensor (116) is configured for generating at least one photosensor signal dependent on an illumination of the photosensitive region (116) by the optical radiation (114); - at least one movement sensor (126) configured for generating at least one movement sensor signal dependent on a movement of at least one of the portable spectrometer (110) and the measurement object (112); and - at least one evaluation device (128) configured for determining at least one item of measurement quality information on the optical measurement by using the movement sensor signal, wherein the evaluation device (128) is further configured for determining at least one item of spectral measurement information on the measurement object (112) by using the photosensor signal. Further, a method for performing at least one optical measurement on at least one measurement object (112) is proposed.
A computer-implemented method of obtaining information on the recyclability of at least one flexible foam (112) made at least partially of at least one polyurethane is disclosed. The method comprises: i. at least one first determination step, comprising automatically determining, by evaluating spectral data of the flexible foam (112), whether at least one first chemical compound of a predetermined first list of recyclable candidate components for a first class of monomers of polyurethane is present in the flexible foam (112), the first list of recyclable candidate components comprising at least one first recyclable candidate component; and ii. at least one first decision step, comprising automatically deciding, on the basis of the out-come of step i., if a second determination step is required, the second determination step comprising determining whether at least one second chemical compound of a predetermined second list of recyclable candidate components for a second class of monomers of polyurethane is present in the flexible foam (112), specifically a second list being different from the first list, the second list of recyclable candidate components comprising at least one second recyclable candidate component. Further disclosed are a computer program and a computer-readable storage medium for per-forming the method, a method of treatment of the flexible foam (112), a device (110) for obtaining information on the recyclability of the flexible foam (112) and a system (114) for treatment of the flexible foam (112).
The invention relates to a spectrometer device (112) for analyzing at least one sample (114). The spectrometer device (112) comprises at least one light emitting element (118) configured for emitting light for illuminating the sample (114). The spectrometer device (112) further comprises at least one optical detector (124) configured for generating at least one detector signal according to an illumination of the optical detector (124) by at least a portion of the light emitted by the light emitting element (118) and reflected by the sample (114). Further, the spectrometer device (112) comprises at least one waveguide (120) comprising at least one reflective surface (122) forming a pipe, the waveguide (120) being configured for guiding the light emitted by the light emitting element (118) in a direction towards the sample (114). Further disclosed are a spectrometer system (110) and various uses of the spectrometer device (112).
ACmeasmeasACDCAC0measDCmeas00ACDCmeasmeas) by using the evaluation unit (128). Further, a method for determining at least one item of information on at least one measurement object (114), a photodetector (122) and a spectrometer (110) are proposed.
G01N 21/27 - ColourSpectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection
G01N 21/35 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
G01N 21/31 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
G01N 21/33 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using ultraviolet light
G01N 21/359 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using near infrared light
A method for determining at least one correction function for compensating for responsivity changes of at least one photodetector (120) is proposed. The photodetector (120) comprises at least one photosensitive region (122) and at least one readout electronics unit (124) for reading out the photosensitive region (122). The method comprising the following steps: a) determining at least one reference signal of the photodetector (120), wherein the photo-sensitive region (122) is illuminated by optical radiation (112) provided by at least one reference (156) for determining the reference signal; b) determining at least one background signal level of the photodetector (120); c) determining the correction function by using at least one evaluation unit (132), wherein the determining of the correction function comprises determining a change in background signal level and evaluating a relationship of the change in background signal level and the reference signal. Further, a method for determining at least one item of information on at least one measurement object (114), a photodetector (120) and a spectrometer (110) are proposed.
G01J 1/32 - Photometry, e.g. photographic exposure meter by comparison with reference light or electric value intensity of the measured or reference value being varied to equalise their effects at the detector, e.g. by varying incidence angle using variation of intensity or distance of source using electric radiation detectors adapted for automatic variation of the measured or reference value
G01J 1/28 - Photometry, e.g. photographic exposure meter by comparison with reference light or electric value intensity of the measured or reference value being varied to equalise their effects at the detector, e.g. by varying incidence angle using variation of intensity or distance of source
G01J 1/08 - Arrangements of light sources specially adapted for photometry
G01N 21/3504 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
G01J 1/16 - Photometry, e.g. photographic exposure meter by comparison with reference light or electric value using electric radiation detectors
G01N 21/31 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
The invention relates to a method for determining at least one compensated detector signal for at least one photodetector (120). The at least one photodetector (120) comprises at least one detector element (122) configured for generating at least one detector signal depending on an illumination of the at least one detector element (122). The method comprises the following steps: a) determining at least one dark detector resistance by using the at least one detector element (122) and inhibiting illumination of the at least one detector element (122); b) generating at least one bright detector signal by using the at least one detector element (122) and allowing illumination of the at least one detector element (122); and c) determining at least one compensated detector signal for compensating at least one temperature drift of the at least one detector element (122) by using at least one evaluation unit (128) for evaluating the at least one dark sensor resistance and the at least one bright detector signal. The invention further relates to a method for determining at least one item of measurement information on at least one measurement object (114) by using at least one photodetector (120), a photodetector (120) and a spectrometer (110).
G01J 1/16 - Photometry, e.g. photographic exposure meter by comparison with reference light or electric value using electric radiation detectors
G01N 21/3504 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
A computer-implemented method for generating a spectrum of a sample comprising: - receiving a plurality of spectral data sets suitable for obtaining a plurality of spectra, - aggregating at least a part of the plurality of spectra into at least one aggregated spectrum based on at least one difference among the plurality of spectra, and - providing the at least one aggregated spectrum.
A computer-implemented method for measuring a target value with a NIR model comprising: (a) receiving NIR spectral data, (b) determining at least one target value with the trained NIR model based on the spectral data, wherein the NIR model was trained based on NIR training data comprising at least one model-based reference value determined with a reference model and historical NIR spectral data, (c) providing the at least one target value.
G01N 21/35 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
A spectrometer housing (116) configured for at least partially enclosing at least one detector (112) and at least one emitter (114) of a spectrometer module (110) is disclosed. The spectrometer housing (116) comprises: - a frame element (130); - a lid element (132) connected to the frame element (130); - a separation element (134) arranged within the frame element (130); - a reflector element (136) arranged on at least a part of one or both of the lid element (132) and the frame element (130); and - an interface element (144). An entrance opening (138) is formed by at least the lid element (132) and the frame element (130). On a side opposing the entrance opening (138) at least two mounting openings (124) are formed by at least the lid element (132) and the frame element (130). The at least two mounting openings (124) are separated by the separation element (134). The frame element (130) and the separation element (134) are integrally formed from the same material, wherein the interface element (144) is configured for covering the entrance opening (138). Further, a spectrometer module (110), a method of manufacturing a spectrometer housing (116) and a method of manufacturing a spectrometer module (110) are disclosed.
The invention relates to a method for manufacturing an optical filter unit (114) for a spectrometer device (110). The method comprises: a) providing at least one layer of a filter material (126); b) generating individual filter pieces (130) by singulating the layer of filter material (126) into filter pieces (130); c) providing a carrier (134); d) picking the individual filter pieces (130) and placing them on the carrier (134); e) molding at least one moldable material at least partially onto the carrier (134) with the individual filter pieces (130), thereby generating at least one molded structure (140) with a predefined aperture and a predefined pitch between the individual filter pieces (130); f) removing the carrier (134) to generate a molded filter assembly (144); and g) singulating the molded filter assembly (144) into the at least one optical filter unit (114). Further, an optical detector (112) and a spectrometer device (110) are disclosed.
The invention relates to a spectral sensing device (110) and a method (180) for determining at least one item (140) of spectral information about at least one measurement object (112) as well as a computer program and a non-transient computer-readable medium. The spectral sensing device (110) comprises: - at least one radiation emitting element (116), wherein the at least one radiation emitting element (116) is configured to emit optical radiation (118) designated for illuminating the at least one measurement object (112); - at least one photosensitive detector (120), wherein the at least one photosensitive detector (120) has at least one photosensitive region (122) designated for receiving optical radiation (118) from the at least one measurement object (112) illuminated by the optical radiation (118), wherein at least one detector signal generated by the at least one photosensitive detector (120) is dependent on an illumination of the at least one photosensitive region (122); - at least one evaluation device (128), wherein the at least one evaluation device (128) is configured to determine o at least one signal indicator (138) from evaluating the at least one detector signal generated by the at least one photosensitive detector (120) upon the illumination of the at least one photosensitive region (122) by the optical radiation (118) received from the at least one measurement object (112), wherein the at least one signal indicator (138) indicates whether the at least one detector signal is within a predefined interval; and o the at least one item (140) of spectral information about the at least one measurement object (112) by using the at least one detector signal, thereby taking into account the at least one signal indicator (138); and o generate at least one item (154) of treatment data, wherein the at least one item (154) of treatment data is related to a proposed alteration of the spatial location of the at least one measurement object (112) with respect to the spatial location of the spectral sensing device (110); and at least one user interface (142), wherein the at least one user interface (142) is configured to o provide signal information (148) about the at least one signal indicator (138) to at least one user of the spectral sensing device, wherein the signal information (148) comprises at least one piece of information about a spatial location of the at least one measurement object (112) with respect to the spatial location of the spectral sensing device (110); and o communicate the at least one item (154) of treatment data to the at least one user of the spectral sensing device.
A method for monitoring a condition of a living organism comprising: (a) receiving an image set comprising at least two reflection images generated at different points in time and an indication of at least one interval between at least two different points in time, wherein a reflection image is generated while the living organism is illuminated by patterned coherent electromagnetic radiation and comprises a pattern with at least one pattern feature, and, wherein the reflection image shows at least one pattern feature formed by illuminating at least a part of the living organism by the patterned coherent electromagnetic radiation, and, (b) determining a feature contrast of the at least two pattern features, (c) determining a condition measure of the living organism based on the feature contrast and the indication of the at least one interval, (d) outputting the condition measure.
A method of fabricating at least one optical element (110), specifically at least one optical element (110) for a spectrometer device, is disclosed. The method comprises: i. at least one preparation step, wherein the preparation step comprises providing at least one substrate (112) having at least one first surface (116) and at least one second surface (118), wherein the second surface (118) is located opposite with respect to the first surface (116); ii. at least one deposition step, wherein the deposition step comprises applying at least one first layer (124) to the first surface (116) of the substrate (112), wherein the first layer (124) comprises at least one of an optical filter (126) and an anti-reflection coating (128); and iii. at least one molding step, wherein the molding step comprises molding at least one optical lens (132) onto the first layer (124). Further disclosed is a system (152) for fabricating at least one optical element (110) and an optical element (110).
The invention relates to a method of manufacturing at least one spectrometer device (110) for evaluating electromagnetic radiation. The method comprises: a) providing at least one electro-optical system (114) configured for generating at least one electronic signal according to the electromagnetic radiation; b) providing at least one readout integrated circuit (ROIC) (116) for processing the at least one electronic signal; c) providing at least one circuit carrier (112); d) arranging the electro-optical system (114) on the ROIC (116); e) bonding the electro-optical system (114) and the ROIC (116) such as to establish at least one electrical connection between the electro-optical system (114) and the ROIC (116); f) arranging the ROIC (116) on the circuit carrier (112), such that the ROIC (116) is located between the electro-optical system (114) and the circuit carrier (112). Further, a spectrometer device (110) for evaluating electromagnetic radiation is disclosed.
A method for beam profile analysis using at least one camera (110) is disclosed. The method comprising the following steps: a) (120) at least one data acquisition step, wherein the data acquisition step comprises illuminating at least one object (112) with at least one illumination pattern (122) comprising at least one illumination feature by using at least one projector (124), wherein the projector (124) comprises at least one emitter (126) configured for generating at least one light beam, wherein the data acquisition step further comprises imaging, by using the camera (110), at least one reflection image comprising at least one reflection feature generated by the object in response to illumination by the illumination feature, wherein the reflection feature comprises at least one beam profile, wherein the reflection image has a first bit depth; b) (128) at least one image compression step, wherein the image compression step comprises compressing the reflection image into a compressed reflection image having a second bit depth lower than the first bit depth by using at least one evaluation device (130), wherein the compression comprises applying a non-linear grey value transformation on the sensor signals; c) (132) at least one evaluation step, wherein the evaluation step comprises evaluating the compressed reflection image by using the evaluation device (130), wherein the evaluation comprises determining at least one longitudinal coordinate for the reflection feature by analysis of its respective beam profile.
G01B 11/02 - Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness
G01B 11/25 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures by projecting a pattern, e.g. moiré fringes, on the object
G01S 17/88 - Lidar systems, specially adapted for specific applications
CONSEJO SUPERIOR DE INVESTIGACIONES CIENTIFICAS (CSIC) (Spain)
AUTONOMOUS UNIVERSITY OF BARCELONA (Spain)
Inventor
Gould, Darren
Serra Graells, Francesc
Suanes, Alejandro
Abstract
A readout-circuit (110) is proposed. The readout-circuit (110) is configured for converting an analog sensor charge (112) into a digital output count (114). The readout-circuit (110) comprises at least one integrate-and-fire(IAF)-circuit (116). The lAF-circuit (116) is configured for converting the analog sensor charge (112) into a first digital output count (118). An analog voltage remainder (120) after a final IAF cycle is further processed. The readout-circuit (110) comprises at least one analog-to-digital-converter (ADC) (122). The ADC (122) is configured for converting the analog voltage remainder (120) into a second digital output (124). Further, the input charge to the readout-circuit is a photodetector (182) and a method for readout of an analog sensor charge (112) are proposed.
A method of obtaining at least one item of object information (110) on at least one object (112) by spectroscopic measurement is proposed. The method comprises the following steps: i. acquiring spectroscopic data (114) by using at least one spectrometer device (116), within at least one spatial measurement range (118) of the spectrometer device (116); ii. acquiring, by using at least one imaging device (120), specifically a camera (122), image data of a scene (124) within a field of view (126) of the imaging device (120), the scene (124) comprising at least a part of the object (112) and at least a part of the spatial measurement range (118) of the spectrometer device (116); and iii. evaluating the spectroscopic data (114) of step i. and at least one item of image information (128) derived from the image data of step ii., for obtaining the at least one item of object information (110) on the at least one object (112).
G01N 21/3563 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing solidsPreparation of samples therefor
G01N 21/359 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using near infrared light
G01N 21/84 - Systems specially adapted for particular applications
G01N 21/35 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
The invention relates to a spectrometer device (110) for analyzing a sample (111). The spectrometer device (110) comprises at least one light emitting element (112) configured for emitting light in a measurement spectrum; at least one reference light emitting element (114) configured for emitting reference light in a reference spectrum. Further, the spectrometer device (110) comprises at least one interface element (116) configured for receiving light of the measurement spectrum and transferring light of the measurement spectrum to at least one detector array (122), wherein the interface element (116) is further configured for blocking reference light of the reference spectrum. Further, the spectrometer device (110) comprises at last one segmented aperture (118) configured for acting as one or more of an angle filter and a stray light filter. Further, the spectrometer device (110) comprises at least one optical separation element (120). Further, the spectrometer device (110) comprises and the at least one detector array (122) comprising a plurality of detector elements (124), wherein the detector array (122) is configured for generating at least one detector signal according to an illumination of the plurality of detector elements (124) by one or more of the measurement spectrum and the reference spectrum, wherein each detector element (124) is configured for receiving at least a portion of one or more of the measurement spectrum and the reference spectrum. Further disclosed are a spectrometer system (146), a method for determining at least one information related to a spectrum of a sample (111) with the spectrometer device (110) and various uses of a spectrometer system (146).
G01N 21/31 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
G01N 21/35 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
G01N 21/27 - ColourSpectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection
A method of calibrating a spectral sensing device (110) is disclosed. The spectral sensing de- vice (110) comprises: a. at least one detector element (112) configured for generating at least one detector signal in response to an illumination of the detector element (112) by incident light; b. at least one wavelength-selective element (120) configured for transferring incident light within at least one selected wavelength range onto the detector element (112); c. at least one light source (124) configured for emitting light in at least one optical spectral range; d. at least one sample interface (126) configured for allowing light from the light source (124) to illuminate at least one sample (127) and configured for allowing light from the sample (127) to propagate via the wavelength-selective element (120) to the detector element (112); e. at least one first optical path (128), wherein the first optical path (128) is configured for al- lowing light emitted from the light source (124) to propagate via the wavelength-selective element (120) to the detector element (112) without passing the sample interface (126); f. at least one second optical path (130), wherein the second optical path (130) is configured for allowing light emitted from the light source (124) to propagate via the wavelength-se- lective element (120) to the detector element (112) by passing the sample interface (126) at least once. The method comprises: I. illuminating the detector element (112) via the at least one first optical path (128) to obtain at least one first detector signal; II. illuminating the detector element (112) via the at least one second optical path (130) with no sample applied to the sample interface (126) to obtain at least one open port detector signal; III. illuminating the detector element (112) via the at least one second optical path (130) with at least one calibration sample (156) applied to the sample interface (126) to obtain at least one calibration detector signal; and IV. determining at least one item of calibration information by using the first detector signal, the open port detector signal and the calibration detector signal. Further disclosed is a method of determining at least one calibrated optical property of at least one sample (127), a spectral sensing device (110) and computer programs and computer-read- able storage media for performing the methods.
The invention refers to a method for authenticating an object (114). A pattern image is received showing the object while it is illuminated with a light pattern (113) comprising one or more pattern features. From the pattern image pattern features located on the object are selected based on information indicating the position and extend of the object in the pattern image, Several cropped pattern images are generated by cropping the pattern image based on the selected pattern features, wherein a cropped pattern image has a predetermined size and contains at least a part of one of the selected pattern features. The object is the authenticated by providing the cropped pattern images to a machine learning based identification model which has been trained such that it can authenticate an object based on the cropped pattern images as input. The authentication of the object is then outputted.
The present invention is in the field of image processing for the monitoring the condition of a human. It relates to a method for training a data-driven model for determining a user-selected parameter value related to the condition of a human comprising: (a) receiving an image of a body part of the human while the body part is illuminated by a light pattern containing at least one pattern feature, (b) determining skin pattern features from the image, wherein a skin pattern feature is a pattern feature which has been reflected by skin, (c) receiving from a user interface a user-selected parameter value related to the condition of the human, (d) training a data-driven model with a training dataset comprising the skin pattern features and the user-selected parameter value.
G16H 30/40 - ICT specially adapted for the handling or processing of medical images for processing medical images, e.g. editing
G16H 50/30 - ICT specially adapted for medical diagnosis, medical simulation or medical data miningICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for calculating health indicesICT specially adapted for medical diagnosis, medical simulation or medical data miningICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for individual health risk assessment
G16H 50/50 - ICT specially adapted for medical diagnosis, medical simulation or medical data miningICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for simulation or modelling of medical disorders
G06N 3/084 - Backpropagation, e.g. using gradient descent
G16H 50/20 - ICT specially adapted for medical diagnosis, medical simulation or medical data miningICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for computer-aided diagnosis, e.g. based on medical expert systems
88.
FACE AUTHENTICATION INCLUDING OCCLUSION DETECTION BASED ON MATERIAL DATA EXTRACTED FROM AN IMAGE
The invention refers to a method for authorizing a user of a device to perform at least one operation on the device that requires authentication, comprising receiving, in response to receiving the unlock request, at least one image of the user using a camera located on the device while the user is being illuminated with the flood infrared illumination and/or the patterned infrared illumination; generating infrared pattern image data for the region of interest from the at least one image; extracting material data from the infrared pattern image data and determining at least one occlusion from material data; and allowing or declining the user to perform at least one operation on the device that requires authentication based on the material data and/or the determined occlusion.
The invention relates to a method for detecting a vital sign, the method comprising the steps of a) generating or receiving an image data set representing at least one reflection image of a speckle pattern produced by coherent electromagnetic radiation reflected from an object, b) determining a speckle contrast of the speckle pattern, c) determining a vital sign measure based on the determined speckle contrast, and d) providing the vital sign measure.
A system for identifying a display device is provided, wherein the system comprises i) an image providing unit for providing an image of an object (10) that has been acquired by projecting an illumination pattern through a display (201) of the display device onto the object and imaging the illuminated object through the display. The system further comprises ii) a reflection pattern extracting unit for extracting a reflection pattern corresponding to the illumination pattern from the image, and iii) an identity determining unit for determining an identity of the display device based on the reflection pattern.
A method for characterizing material properties of an object, wherein said object has a form and comprising at least one material, the method comprises: receiving imaging data associated to the object (S1), said imaging data being obtained by the process of irradiating (S10) at least one illumination pattern comprising a plurality of illumination features onto the object, and receiving (S11) at least one first image comprising a spot pattern originating from the object in response to the irradiated illumination pattern; determining (S2), by processing the received imaging data, at least one reflection feature corresponding to a spot in the first image; comparing (S3), by processing the at least one reflection feature, the spot pattern comprised in the first image with reference spot patterns for obtaining a comparison result; and determining (S4) a material property of the object as a function of the comparison result. Further a device with data processing capabilities and implementing the method is disclosed.
The invention relates to a system for determining a material of an object. The system comprises an image providing unit, a material score determination unit, a material determination unit and an output unit. The image providing unit is configured for providing at least two images each showing a part of the object. The material score determination unit is configured for determining a material score for each of the at least two images, said material score being indicative of a presence of a predefined material in the respective image. The evaluation unit is configured for evaluating the material scores determined for each of the at least two images. This material determination unit is configured for determining the material of the object based on the evaluation. The output unit is configured for outputting the determined material of the object.
A method for determining an access right of a user to a requesting computer device (1), the method comprising, by an authenticating computer device (30): receiving (S1) a detector signal containing captured biometric information about the user from the requesting computer device (1), authenticating (S2) the user based on the detector signal, determining (S3) an access right information of the user based on the authentication and based on a prestored access right information indicating user rights associated with one or multiple users, the access right information indicating an extent to which the user is allowed to access the requesting computer device (1), and transmitting (S4) the access right information of the user to the requesting computer device (1).
A method for authenticating a user for access involving at least a first device and a second device comprising: a. receiving an access request, b. in response to the access request, recording at least one image with the first device, c. extracting at least one facial feature of the at least one image, d. receiving a template from the second device, e. generating an access signal indicative of whether the user has access based on a comparison of the at least one facial feature and the template, f. outputting the access signal.
G07C 9/25 - Individual registration on entry or exit involving the use of a pass in combination with an identity check of the pass holder using biometric data, e.g. fingerprints, iris scans or voice recognition
95.
FACE AUTHENTICATION INCLUDING MATERIAL DATA EXTRACTED FROM IMAGE
The invention refers to a method for authorizing an object of a device to perform at least one operation on the device that requires authentication, comprising the steps: - receiving, from a user interface associated with a device, an unlock request for the device from a user; - in response to receiving the unlock request, triggering illumination of the object with patterned infrared illumination; - triggering to capture at least one image of the object using a camera located on the de- vice while the object is being illuminated with the patterned infrared illumination; - extracting material data from at least one image; and - allowing or declining the object to perform at least one operation on the device that requires authentication based on the material data.
The invention refers to a method for extracting material information of an object from a pattern image of the object. The pattern image showing the object while the object is illuminated with a light pattern is received. The pattern image is manipulated to generate a partial image from the pattern image. Material information of the object is extracted from the partial image by providing the partial image to a data-driven model. The data-driven model is parametrized according to a training data set including partial images and material information. The extracted material information is provided.
A system for identifying a subject interacting with a display device (200) is provided, wherein the system comprises i) an image providing unit for providing a first image showing a first body part (10, 11) of the subject and a second image showing a second body part (10, 11) of the subject, wherein the first and the second image have been acquired by imaging the first and second body part, respectively, through a display of the display device, ii) a combined similarity determining unit for determining a combined degree of similarity of a) the first and the second image to b) a first and a second reference image corresponding to a reference subject identity, and iii) a subject identity determining unit for determining whether an identity of the subject corresponds to the reference subject identity based on the combined degree of similarity.
A method for protecting information displayed on a display device (1) from unauthorized views, the method comprising the steps: receiving (S1) an image showing surroundings of the display device (1), detecting (S2) one or multiple relevant faces on the image, determining (S3), for each relevant face detected on the image, whether it is authorized to look at the display device (1), generating (S4) a verification signal indicating whether all relevant faces detected on the image are authorized to look at the display device (1) or not based on a result of the determining step (S3), and outputting (S5) the verification signal.
A method for operating a display device (1) having at least one processing unit (5) configured to execute apps, comprises the steps of: receiving (S1) an access request signal for executing a soft- ware service or transaction; assigning (S2) a security level to the access request. If the assigned security level exceeds a predetermined security level, an advanced security level authentication process including a first authentication process (S4) and a second authentication process (S5) is initiated. The first authentication process (S4) comprises the steps of: receiving imaging data associated to the scene (S101), said imaging data being obtained by the process of irradiating (S110) at least one illumination pattern comprising a plurality of illumination features onto the scene, and receiving (S111) at least one first image comprising a spot pattern originating from the scene in response to the irradiated illumination pattern; determining (S112), by processing the received imaging data, at least one reflection feature corresponding to a spot in the first image; comparing (S113), by processing the at least one reflection feature, the spot pattern comprised in the first image with reference spot patterns for obtaining a comparison result; and determining (S114) a first authentication parameter as a function of the comparison result. The second authentication process (S5) comprises the steps of: receiving (S51) authentication data associated to the scene; evaluating (S52) the received authentication data for obtaining an evaluation result; and determining (S53) a second authentication parameter as a function of the evaluation result. According to the method, an authentication signal as a function of the first and the second authentication parameter is generated. Further a display device with data processing capabilities and implementing the method is disclosed.
A method for controlling a display device (1) comprising: a) receiving (S1) a process request for executing a process comprising at least one step executable by the display device (1); b) determining (S2) user-related and/or process-related information based on the received process request; c) generating (S3) a display control signal based on the user-related and/or process- related information, wherein the display control signal is suitable for controlling the functioning of at least one pixel of a display unit (3) of the display device (1); and d) providing (S4) the generated display control signal.
G09G 3/3208 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
patents
